If you've been a photographer for very long, this has probably happened to you before. You're out shooting, lugging around your gear, and you stop to take a quick shot, place your lens cap on the ground for a second, only to walk off without it. Or maybe you perched it precariously on a ledge and a brisk wind took it away. Embarrassingly enough, I managed to misplace my X100 lens cap a few weeks ago after a long night of bar hopping with some friends! It's disappointing, but usually a cheap $1.00 plastic replacement will solve the problem. Not so with the X100 - that handsome aluminum lens cap comes with a premium price!
Fortunately there's now an affordable 3rd party replacement X100 lens cap on the market from Rainbow Imaging, just $13.99 (£9) with free shipping
on eBay. $14 for a lens cap?! I know, right? Well, it's better than the
$29 alternative...

If you've been using your X100 lens hood, this won't be a problem for you, but lately I've preferred to use my X100 without one to keep it compact for travel, so a lens cap is essential. My replacement lens cap arrived a few weeks ago, I thought I'd share a quick review for anyone who finds themselves in my position.
I suppose there's really not much to review, it works great! It's the same size and shape as the original lens cap, though it seems to weigh a little bit less. The only distinguishing difference is that this lens cap does not bare the embossed Fujifilm name. The interior has a similar soft suede material to protect the lens and help it grip the focusing ring. It fits a little tight, but I find it to be far more secure than the original lens cap, and I don't have to worry about it ever falling off. The silver finish matches the X100 very well, and it has only the most minor of imperfections around the edges. Clearly the original lens cap is made to a higher standard, but let's be honest here, it's just a lens cap!
Check it out on eBay.